XPDictionary.QueryClassInfo(String, String) Method

When implemented by a class, returns the persistent class metadata information for the specified assembly name and class name.

Namespace: DevExpress.Xpo.Metadata

Assembly: DevExpress.Xpo.v24.1.dll

NuGet Packages: DevExpress.Win.PivotGrid, DevExpress.Win.TreeMap, DevExpress.Xpo

NuGet Package: DevExpress.Xpo

Declaration

C#

public abstract XPClassInfo QueryClassInfo(
    string assemblyName,
    string className
)

VB.NET

Public MustOverride Function QueryClassInfo(
    assemblyName As String,
    className As String
) As XPClassInfo

Parameters

Name	Type	Description
assemblyName	String	The assembly name.
className	String	The full name of the class.

Returns

Type	Description
XPClassInfo	The XPClassInfo object for the specified class or null reference (Nothing in Visual Basic) when the metadata information cannot be obtained.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the QueryClassInfo(String, String) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

XPO_how-to-persist-metadata-e269/CS/MetadataObjects.cs#L51

public XPClassInfo CreateClass(XPDictionary dictionary) {
    XPClassInfo result = dictionary.QueryClassInfo(AssemblyName, Name);
    if(result == null) {

VB.NET

XPO_how-to-persist-metadata-e269/VB/MetadataObjects.vb#L71

Public Function CreateClass(ByVal dictionary As XPDictionary) As XPClassInfo
    Dim result As XPClassInfo = dictionary.QueryClassInfo(AssemblyName, Name)
    If result Is Nothing Then